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              <div class="container">
        
    <header>
        <nav>
          <ul>
            <li class="logo"><a href="#"><i class="fa fa-file-code-o" aria-hidden="true"></i>
            <li><a href="#">About</a></li>
            <li><a href="#">Contact</a></li>
          </ul>
        </nav>
        <button>Login</button>
    </header>

    <div class="wrapper">
        <aside class="sidebar">

            <h3>Recent Posts</h3>
        <ul>
            <li><a href="#">Post One</a></li>
            <li><a href="#">Post Two</a></li>
            <li><a href="#">Post Three</a></li>
            <li><a href="#">Post Four</a></li>
            <li><a href="#">Post Five</a></li>
          </ul>
        </aside>
        <section class="main">
          <img src="http://abbeyjfitzgerald.com/wp-content/uploads/2017/06/flexbox-header.jpg">
            <h2>Flexbox Layout</h2>

            <p>Starting from the outside and working in, adding display: flex; to the container is the first step in any flexbox layout. The flex-direction is column, so this will position all sections under each other.    </p>
          
          <p>One handy thing is how easy it is to align text. In the navigation, with align-items: baseline, all navigation items are aligned to the baseline of the text so they look more uniform. </p>
        
        </section>
    </div>

    <footer>
        <h3>Flexbox Layout Example</h3>
        <p>Hope you enjoyed learning about Flexbox Layouts!</p>
    </footer>

</div>
            
          
!
            
              @import url('https://fonts.googleapis.com/css?family=Montserrat:400,500,600,700');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a {
    color: inherit;
    text-decoration: none;
}

body {
    background-color: #eee;
    color: #434344;
    font-family: "Montserrat", sans-serif;
    font-weight: 400;
}

/* Page Layout */

.container {
    max-width: 850px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    flex-direction: column;
    background-color: #fff;
}

/* Header */

header{
    color: #9f9c9c;
    padding: 20px 0;
    margin-bottom: 40px;
    text-transform: uppercase;
    border-bottom: 2px solid #b0e0ea;
    display: flex;
    justify-content: space-between;
}

header nav ul {
    display: flex;
    align-items: baseline;
    list-style-type: none;
}

header nav li {
    margin-right: 15px;
}

header button {
    border: none;
    padding: 8px 25px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    border-radius: 1.25rem;
    background-color: #51bb7b;
}

/* Main Section */

.wrapper {
    display: flex;
}

.main {
    flex: 3;
}

.main h2 {
    font-size: 32px;
    margin: 1rem 0;
    color: #50c6db;
}

.main p {
    font-size: 1rem;
    margin-bottom: .75rem;
}

.main img {
    width: 100%;
}

/* Sidebar */

.sidebar {
    padding: 20px;
    flex: 1;
    margin-right: 60px;
    border-top: 3px solid #693f7e;
    background-color: #f9f9f9;
}

.sidebar ul {
  list-style-type: none;
  margin-top: 1rem;
  font-size: .75rem;
}

.sidebar ul > li {
    padding: .25rem 0;
}

.logo {
  font-size: 2rem;
  margin-right: 1.5rem;
  color: #50c6db;
}

/* Footer */

footer {
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 60px;
    padding: 20px 0;
    background-color: #9f9c9c;
}

footer p {
    color: #434344;
    font-size: 12px;
    padding: 10px;
}


@media (max-width: 600px) {
    .wrapper {
        flex-direction: column;
    }

    .main {
        margin-right: 0;
        margin-bottom: 60px;
    }
}
            
          
!
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